JP2001102027A - Enclosed lead battery - Google Patents
Enclosed lead batteryInfo
- Publication number
- JP2001102027A JP2001102027A JP27780899A JP27780899A JP2001102027A JP 2001102027 A JP2001102027 A JP 2001102027A JP 27780899 A JP27780899 A JP 27780899A JP 27780899 A JP27780899 A JP 27780899A JP 2001102027 A JP2001102027 A JP 2001102027A
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- separator
- lead battery
- glass fiber
- sealed lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、密閉形鉛蓄電池に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed lead-acid battery.
【０００２】[0002]
【従来の技術】密閉形鉛蓄電池は安価で信頼性が高いと
いう特徴を有するため、無停電電源装置や電力貯蔵用に
使用されている。最近、密閉形鉛蓄電池の長寿命化が強
く要求されている。2. Description of the Related Art Sealed lead-acid batteries are characterized by being inexpensive and highly reliable, and are therefore used for uninterruptible power supplies and for power storage. Recently, there is a strong demand for extending the life of sealed lead-acid batteries.
【０００３】これらの密閉形鉛蓄電池は、一般的にペー
スト式正極板及びペースト式負極板を、ガラス繊維製の
セパレータを介して積層して極板群を作製し、該極板群
を電槽に収容したものである。そして、前記密閉形鉛蓄
電池は、ペースト式正極板、ペースト式負極板及びセパ
レータに、電解液として希硫酸を染み込ませた状態で使
用している。これらの密閉形鉛蓄電池は、極板群の板面
を垂直方向に立てた状態で充放電を行うと、電解液の濃
度が上に低、下に高になる現象、いわゆる電解液の成層
化現象が起こりやすい。そして、この成層化現象によっ
て、密閉形鉛蓄電池の寿命が短くなることが知られてい
る。[0003] In these sealed lead-acid batteries, generally, a paste type positive electrode plate and a paste type negative electrode plate are laminated with a glass fiber separator interposed therebetween to form an electrode group. It was housed in The sealed lead-acid battery is used with paste-type positive electrode plate, paste-type negative electrode plate and separator impregnated with dilute sulfuric acid as an electrolytic solution. When these sealed lead-acid batteries are charged and discharged with the plate surface of the electrode group standing upright, the concentration of the electrolyte becomes higher and lower, that is, the so-called stratification of the electrolyte. The phenomenon is easy to occur. It is known that the life of the sealed lead-acid battery is shortened by the stratification phenomenon.
【０００４】なお、電解液の成層化現象を抑制するに
は、セパレータとしてガラス製の細繊維を用い、かつ高
密度に圧縮した状態で使用する手法が知られている。ま
た、シリカ粉体を分散させた電解液を注液することによ
って、成層化現象を抑制する工夫もなされている。しか
しながら、これらの方式を用いても成層化現象の防止に
は、充分でないのが現状である。In order to suppress the stratification of the electrolytic solution, there is known a method in which fine fibers made of glass are used as a separator and the separator is used in a state of being compressed at a high density. In addition, a device has been devised to suppress the stratification phenomenon by injecting an electrolytic solution in which silica powder is dispersed. However, at present, these methods are not enough to prevent stratification.
【０００５】成層化現象の対策として、正負の電極板及
びセパレータの積層方向が上下方向になるように設置し
た密閉形鉛蓄電池が検討されている。そして、この方式
を用いると電解液の成層化現象をかなり防止できるた
め、長寿命化に効果があることが明らかになっている。
しかしながら、このような密閉形鉛蓄電池においても、
より長期間の使用によって、積層方向に対して上部に位
置する電極やセパレータに染み込んでいる電解液の濃度
に比べて、下部に位置する電極やセパレータに染み込ん
でいる電解液の濃度が高くなるという成層化現象が認め
られている。[0005] As a countermeasure against the stratification phenomenon, a sealed lead-acid battery in which the positive and negative electrode plates and the separator are stacked so that the laminating direction thereof is vertical is being studied. It has been found that the use of this method can significantly prevent the stratification of the electrolytic solution, which is effective in extending the life.
However, even in such a sealed lead-acid battery,
By using for a longer period of time, the concentration of the electrolytic solution permeating the lower electrode or separator becomes higher than the concentration of the electrolytic solution permeating the upper electrode or separator in the laminating direction. Stratification has been observed.
【０００６】[0006]
【発明が解決しようとする課題】本発明の目的は、密閉
形鉛蓄電池における電解液の成層化現象を抑制すること
によって、寿命性能を向上させることである。SUMMARY OF THE INVENTION An object of the present invention is to improve the life performance by suppressing the stratification of the electrolyte in a sealed lead-acid battery.
【０００７】[0007]
【課題を解決するための手段】上記した課題を解決する
ために、第一の発明は、正極板、負極板及びガラス繊維
製のセパレータを積層して極板群とし、積層方向が上下
方向になるように前記極板群を電槽内に収容した状態で
使用する密閉形鉛蓄電池において、前記セパレータは、
ガラス繊維の密度が0.16g/cm3以下であり、孔径の最大
値が19μm以上であり、孔径の平均値が4.3μm以上であ
り、比表面積が2.2m2/g以下であることを特徴としてお
り、第二の発明は、前記ガラス繊維は、平均繊維径が0.
8μm以上であることを特徴としている。Means for Solving the Problems In order to solve the above problems, a first invention is to laminate a positive electrode plate, a negative electrode plate and a separator made of glass fiber into an electrode plate group, and the laminating direction is vertical. In a sealed lead-acid battery used in a state where the electrode group is housed in a battery case so that the separator,
The density of the glass fiber is 0.16 g / cm 3 or less, the maximum value of the pore size is 19 μm or more, the average value of the pore size is 4.3 μm or more, and the specific surface area is 2.2 m 2 / g or less. In the second invention, the glass fiber has an average fiber diameter of 0.
It is characterized by being 8 μm or more.
【０００８】[0008]
【発明の実施の形態】１．セパレータの作製 以下の実施例及び比較例に使用したガラス繊維製のセパ
レータは、後述する様に繊維径の異なるガラス繊維と、
バインダ繊維とを、適量の水に分散させた後に、抄いた
後、加熱・乾燥させて作成したものである。後述する表
１に示す、セパレータの繊維密度及び孔径は、ガラス繊
維の水中への分散量で調節し、比表面積は繊維径の異な
るガラス繊維の配合割合で調節した。BEST MODE FOR CARRYING OUT THE INVENTION Production of the separator The glass fiber separator used in the following Examples and Comparative Examples, glass fibers having different fiber diameters as described below,
It is prepared by dispersing a binder fiber in an appropriate amount of water, making it, then heating and drying it. The fiber density and pore diameter of the separator shown in Table 1 described below were adjusted by the amount of glass fibers dispersed in water, and the specific surface area was adjusted by the mixing ratio of glass fibers having different fiber diameters.
【０００９】セパレータの繊維密度は、19.6kPa（20kgf
/100cm2）の荷重をかけた状態で測定した厚さと坪量と
から計算した。セパレータの孔径の最大値はバブルポイ
ント法で測定し、孔径の平均値はコールター・ポロシメ
ータ（コールター社製）で測定した。セパレータの比表
面積は、ＢＥＴ法で測定した。The fiber density of the separator is 19.6 kPa (20 kgf
/ 100 cm 2 ) was calculated from the thickness measured under a load and a basis weight. The maximum value of the pore diameter of the separator was measured by a bubble point method, and the average value of the pore diameter was measured by a Coulter porosimeter (manufactured by Coulter). The specific surface area of the separator was measured by the BET method.
【００１０】セパレータの吸液速度は、以下の手法で測
定した。すなわち、セパレータを透明なアクリル板で挟
み、その加圧力を39.2kPa（40kgf/100cm2）になるよう
に調節した後、セパレータの下端部を、メチルオレンジ
で着色した比重が1.30の希硫酸に浸漬する。そして、セ
パレータの着色された部分の高さが、液面から30cmまで
吸い上がるまでの時間を測定して比較した。The liquid absorption rate of the separator was measured by the following method. That is, the separator is sandwiched between transparent acrylic plates, the pressure is adjusted to 39.2 kPa (40 kgf / 100 cm 2 ), and then the lower end of the separator is immersed in dilute sulfuric acid colored with methyl orange and having a specific gravity of 1.30. I do. Then, the time until the height of the colored portion of the separator was up to 30 cm from the liquid level was measured and compared.
【００１１】２．密閉形鉛蓄電池の作成 正極板及び負極板は、鉛−カルシウム−錫の合金を使用
した格子体に、ペースト状活物質を充填して作成する従
来から使用している極板を用いた。この正極板３枚と、
負極板４枚とを後述する仕様の各種セパレータを介して
積層して電極群とし、それをＡＢＳ製の電槽に組み込ん
だ後、電解液を注入して電槽化成して密閉し、従来の手
法で公称容量が2V-15Ahの密閉形鉛蓄電池を作成した。2. Preparation of Sealed Lead-Acid Battery For the positive electrode plate and the negative electrode plate, a conventionally used electrode plate prepared by filling a paste-like active material into a lattice using a lead-calcium-tin alloy was used. With three positive plates,
An electrode group is formed by laminating four negative plates through various types of separators having specifications to be described later, and after assembling them in a battery case made of ABS, injecting an electrolytic solution to form a battery case and sealing the conventional battery. A sealed lead-acid battery with a nominal capacity of 2V-15Ah was created by the method.
【００１２】３．サイクル寿命試験 電槽化成後の密閉形鉛蓄電池は、周囲温度が25±2℃、
1.5A（0.1CA）で放電（放電終止電圧1.8V）して初期の
放電容量を測定した後、下記の条件でサイクル寿命試験
をした。 放電条件：3.75A（0.25CA）の電流値で３時間放電。 充電条件：3.75A（0.25CA）の電流値で３時間充電した
後に、0.45A（0.03CA）で2.5時間充電。3. Cycle life test The sealed lead-acid battery after battery formation has an ambient temperature of 25 ± 2 ° C.
After discharging at 1.5 A (0.1 CA) (discharge end voltage 1.8 V) and measuring the initial discharge capacity, a cycle life test was performed under the following conditions. Discharge conditions: Discharge for 3 hours at a current value of 3.75A (0.25CA). Charging conditions: After charging for 3 hours at a current value of 3.75A (0.25CA), charging for 2.5 hours at 0.45A (0.03CA).
【００１３】上記した条件で充放電サイクル試験をし、
100サイクル毎に1.5A（0.1CA）で放電（放電終止電圧1.
8V）して放電容量を測定した。そして、放電容量が初期
の放電容量の80%になった時点を密閉形鉛蓄電池の寿命
とした。表１に実験に使用した各種セパレータの物性値
と、密閉形鉛蓄電池のサイクル寿命との関係を示す。A charge / discharge cycle test was performed under the above conditions,
Discharge at 1.5A (0.1CA) every 100 cycles (discharge end voltage 1.
8V) and the discharge capacity was measured. The time when the discharge capacity reached 80% of the initial discharge capacity was defined as the life of the sealed lead-acid battery. Table 1 shows the relationship between the physical properties of the various separators used in the experiment and the cycle life of the sealed lead-acid battery.
【００１４】表１より、使用するセパレータは、ガラス
繊維の密度が0.16g/m3以下であり、孔径の最大値が19μ
m以上、孔径の平均値が4.3μm以上、比表面積が2.2mm2/
g以下であることが好ましい。なお、使用するセパレー
タは、ガラス繊維の平均繊維径が0.8μm以上にすること
がより好ましい。また、吸液速度が82.5min/30cm以下で
あることが、さらに好ましいことがわかる。そして、寿
命試験後の解体調査によって、本発明を用いると電解液
の成層化現象が起こりにくくなっていることも確認でき
た。According to Table 1, the separator used has a glass fiber density of 0.16 g / m 3 or less and a maximum pore diameter of 19 μm.
m or more, the average value of the pore diameter is 4.3 μm or more, and the specific surface area is 2.2 mm 2 /
It is preferably not more than g. It is more preferable that the separator used has an average fiber diameter of glass fibers of 0.8 μm or more. It is also found that the liquid absorption rate is more preferably 82.5 min / 30 cm or less. And, it was also confirmed by the disassembly inspection after the life test that the use of the present invention made it difficult for the electrolyte solution to be stratified.
【００１５】[0015]
【表１】 [Table 1]
【００１６】上記した結果は、セパレータに用いるガラ
ス繊維の繊維径が単一のものでない場合や、ガラス繊維
中に有機繊維を含む場合及びセパレータ中にシリカ等の
無機粉末を含む場合においても同様の傾向を示した。ま
た、上記した条件と異なる充放電条件でも同様の傾向を
示した。The above results are the same even when the fiber diameter of the glass fiber used for the separator is not a single diameter, when the glass fiber contains an organic fiber, and when the separator contains an inorganic powder such as silica. Showed a trend. Further, the same tendency was exhibited under charge / discharge conditions different from the above conditions.
【００１７】[0017]
【発明の効果】上述したように、本発明を用いた密閉形
鉛蓄電池は寿命性能を向上させることができ、その工業
的価値は非常に大きいものである。As described above, the sealed lead-acid battery using the present invention can improve the life performance, and its industrial value is very large.
Claims (2)
ータを積層して極板群とし、積層方向が上下方向になる
ように前記極板群を電槽内に収容した状態で使用する密
閉形鉛蓄電池において、前記セパレータは、ガラス繊維
の密度が0.16g/cm3以下であり、孔径の最大値が19μm以
上であり、孔径の平均値が4.3μm以上であり、比表面積
が2.2m2/g以下であることを特徴とする密閉形鉛蓄電
池。1. A hermetic seal used by laminating a positive electrode plate, a negative electrode plate, and a separator made of glass fiber to form an electrode plate group, and using the electrode plate group housed in a battery case so that the lamination direction is vertical. In the lead-acid battery, the separator has a glass fiber density of 0.16 g / cm 3 or less, a maximum pore diameter of 19 μm or more, an average pore diameter of 4.3 μm or more, and a specific surface area of 2.2 m 2. / g or less, a sealed lead-acid battery.
上であることを特徴とする請求項１記載の密閉形鉛蓄電
池。2. The sealed lead-acid battery according to claim 1, wherein the glass fibers have an average fiber diameter of 0.8 μm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27780899A JP2001102027A (en) | 1999-09-30 | 1999-09-30 | Enclosed lead battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27780899A JP2001102027A (en) | 1999-09-30 | 1999-09-30 | Enclosed lead battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001102027A true JP2001102027A (en) | 2001-04-13 |
Family
ID=17588564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27780899A Abandoned JP2001102027A (en) | 1999-09-30 | 1999-09-30 | Enclosed lead battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001102027A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016513861A (en) * | 2013-03-07 | 2016-05-16 | ダラミック エルエルシー | Oxidation-resistant laminated separator |
| JP2017033864A (en) * | 2015-08-05 | 2017-02-09 | 日立化成株式会社 | Control valve type lead-acid battery |
| KR20190019412A (en) | 2017-08-17 | 2019-02-27 | 현대자동차주식회사 | Electrolyte for a lead storage battery and lead storage battery comprising it |
| KR20190064117A (en) | 2017-11-30 | 2019-06-10 | 세방전지(주) | Dual battery system for vehicle comrrising lead-acid battery and lithium battery |
| US10361462B2 (en) | 2016-10-14 | 2019-07-23 | Hyundai Motor Company | Electrolyte composition of lead storage battery and lead storage battery using the same |
| US11664557B2 (en) | 2017-02-10 | 2023-05-30 | Daramic, Llc | Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewith |
-
1999
- 1999-09-30 JP JP27780899A patent/JP2001102027A/en not_active Abandoned
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016513861A (en) * | 2013-03-07 | 2016-05-16 | ダラミック エルエルシー | Oxidation-resistant laminated separator |
| JP2020115490A (en) * | 2013-03-07 | 2020-07-30 | ダラミック エルエルシー | Oxidation resistant laminated separator |
| JP7219244B2 (en) | 2013-03-07 | 2023-02-07 | ダラミック エルエルシー | Oxidation resistant laminated separator |
| JP2017033864A (en) * | 2015-08-05 | 2017-02-09 | 日立化成株式会社 | Control valve type lead-acid battery |
| US10361462B2 (en) | 2016-10-14 | 2019-07-23 | Hyundai Motor Company | Electrolyte composition of lead storage battery and lead storage battery using the same |
| US11664557B2 (en) | 2017-02-10 | 2023-05-30 | Daramic, Llc | Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewith |
| KR20190019412A (en) | 2017-08-17 | 2019-02-27 | 현대자동차주식회사 | Electrolyte for a lead storage battery and lead storage battery comprising it |
| KR20190064117A (en) | 2017-11-30 | 2019-06-10 | 세방전지(주) | Dual battery system for vehicle comrrising lead-acid battery and lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20041026 |
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| A762 | Written abandonment of application |
Free format text: JAPANESE INTERMEDIATE CODE: A762 Effective date: 20041209 |